Finding the Third Proportional to 272,524.50 and 425,340

Step by Step Solution

1. Step 1: Write the proportion equation
   272,524.50 : 425,340 = 425,340 : x
2. Step 2: Convert to fraction form
   272,524.50/425,340 = 425,340/x
3. Step 3: Cross multiply
   272,524.50x = 425,340 × 425,340
4. Step 4: Simplify right side
   272,524.50x = 180,914,115,600
5. Step 5: Solve for x
   x = 180,914,115,600/272,524.50
6. Step 6: Final answer
   x = 663,845.33